<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>iframe测试体验页面无刷新</title>
</head>
<body>

<div>
    <p>请输入地址：</p>
    <p>
    <input type="text" id="url">
    <input type="button" value="提交">
    </p>

</div>

<div>
    <iframe style="width:100%;height: 500px"></iframe>
</div>

</body>
</html>